What is dolomite powder used for in paints?

Dolomite powder (CaMg(CO₃)₂) is used as an extender filler in paint manufacturing. It improves opacity, whiteness, scrub resistance, and weather durability while reducing the amount of expensive TiO2 pigment needed. It is used in interior emulsions, exterior coatings, enamels, texture paints, and primers.

What mesh size of dolomite powder is best for paints?

The ideal mesh size depends on the paint type: 300–400 mesh for interior emulsions, 250–350 mesh for exterior paints, 400–500 mesh for enamels, 100–200 mesh for texture paints, and 200–300 mesh for primers. Using the wrong mesh size leads to surface defects, poor gloss, or insufficient texture.

Can dolomite powder replace TiO2 in paints?

Dolomite powder cannot fully replace TiO2, but it can reduce TiO2 usage by 15–20% in most formulations. Its high natural whiteness and superior light-scattering properties allow paint manufacturers to achieve equivalent opacity with less TiO2, resulting in significant cost savings.

Why is dolomite better than calcium carbonate for paints?

Dolomite offers higher hardness (Mohs 3.5–4.0 vs. 3.0 for CaCO₃), better acid rain resistance due to its MgCO₃ content, lower oil absorption (18–22 vs. 25–35 g/100g), and superior anti-chalking properties. These advantages make dolomite powder the preferred choice for premium and exterior paint formulations.

Where can I buy dolomite powder for paint manufacturing in India?

Shivam Minerals is a leading dolomite powder manufacturer in India, supplying paint-grade dolomite to manufacturers across the country. They offer application-specific grades from 100 to 500+ mesh with guaranteed whiteness and purity certifications. Contact: +91-9983911213 or visit shivammineral.com.

What is dolomite powder used for in adhesives?

Dolomite powder for adhesive manufacturing serves as a mineral filler that reduces production costs, improves bond strength, controls rheology (flow and sag resistance), and extends shelf life. It is used in PVA wood adhesives, cement-based tile adhesives, polyurethane sealants, epoxy compounds, and construction bonding agents.

How much dolomite powder should I add to adhesive formulations?

The optimal dosage of dolomite powder in adhesives varies by product type: 30–40% for PVA/white glue, 40–55% for tile adhesives, 25–40% for PU sealants, and 20–35% for epoxy adhesives. Exceeding these ranges can reduce bond strength, while under-dosing increases production costs unnecessarily.

What mesh size of dolomite is best for adhesive manufacturing?

For most adhesive applications, 200–400 mesh dolomite powder is suitable. PU sealants and epoxy adhesives require finer grades (300–500 mesh) for smooth extrusion and defect-free bond lines. Tile adhesives can use slightly coarser grades (200–300 mesh) for better workability.

Why is low moisture content important in dolomite for adhesives?

Moisture in dolomite powder for adhesive manufacturing causes critical defects: foaming in PU sealants (water reacts with isocyanate to produce CO₂ bubbles), premature thickening in PVA adhesives, and amine blush in epoxy systems. Dolomite moisture should be ≤ 0.5% for water-based adhesives and ≤ 0.2% for reactive systems like PU and epoxy.

Where can I buy dolomite powder for adhesive manufacturing in India?

Shivam Minerals is a leading dolomite powder manufacturer supplying adhesive-grade dolomite to manufacturers across India. They offer precisely controlled mesh sizes from 200 to 500+ mesh, guaranteed low moisture content, and complete chemical analysis certificates with every consignment. Contact: +91-9983911213.

Dolomite Powder & Dolomite Grains Manufacturer | Shivam Minerals India

Leading manufacturer of premium Dolomite Powder and Dolomite Grains in India. We supply industrial-grade dolomite for paints, agriculture, and wall care products in custom mesh sizes (16/32, 25/52, 50-150, 200+ mesh). Trusted since 1990.

Industrial Insights - Dolomite Blog

How Dolomite Powder Reduces TiO2 Costs in Exterior Paint Formulations - Discover how paint manufacturers use dolomite powder to replace 15-20% TiO2 in exterior coatings. Dolomite powder for paint manufacturers, TiO2 replacement, dolomite extender for paints.
Why Adhesive and Sealant Manufacturers Are Switching to Dolomite-Based Fillers - Dolomite for adhesives, dolomite filler for sealants, adhesive mineral filler. Superior rheology, lower moisture sensitivity, and better shelf life for PVA, epoxy, and PU adhesives.
Dolomite: The Dual-Purpose Industrial Filler for Paint and Adhesive Manufacturers - Streamline procurement with dolomite powder, a single mineral filler for both paint and adhesive manufacturing. Industrial filler for paint manufacturers.
Dolomite for Thermoplastic Paint: The Essential Filler for Road Marking Manufacturers - Dolomite for thermoplastic paint, dolomite for road marking paint. 40-50% filler loading, IS 164 compliant, superior to calcium carbonate for highway markings.
Dolomite for Putty: The Complete Raw Material Guide for Wall Putty Manufacturers - Dolomite for putty, dolomite powder for wall putty. 55-65% loading in white cement putty, IS 15477 specs, dolomite vs CaCO₃ vs talc comparison.
Dolomite Powder for Paints: A Complete Guide for Manufacturers - Dolomite powder for paints, white dolomite for paints, paint grade dolomite powder, dolomite for coatings.
Choosing the Right Dolomite Manufacturer for Your Industry - Dolomite manufacturer, dolomite grain manufacturer, dolomite powder manufacturer, industrial dolomite supplier India.
Dolomite Powder vs. Dolomite Grains: Which Do You Need? - Dolomite powder vs grains, industrial dolomite applications, calcium magnesium carbonate uses.
Dolomite Powder for Paints and Coatings: The Secret to Brighter, Thicker Paints - Dolomite powder for paints, paint extender, white dolomite powder 300 mesh.
Why Dolomite is Essential in Modern Agriculture and Soil Conditioning - Agricultural dolomite, dolomite for soil conditioning, magnesium soil fertilizer.
Dolomite in Glass and Ceramics: Enhancing Durability and Finish - Dolomite for glass, dolomite grains 16/32 mesh, low iron dolomite for glass, ceramic glaze dolomite.
The Role of Dolomite Powder in Wall Care Putty and Construction - Dolomite for wall putty, white dolomite powder 300 mesh, wall care raw material.
Dolomite Powder in Detergents and Soaps: A High-Quality Filler Matrix - Dolomite in detergents, soap filler powder, dolomite for washing powder.
Dolomite Powder for Paints: How to Select the Right Grade for Interior, Exterior, Enamel & Texture Paints - Dolomite powder for paints, paint grade dolomite powder, dolomite for interior paint, dolomite for exterior paint, enamel paint dolomite filler, texture paint dolomite, primer grade dolomite. Complete grade selection guide for paint manufacturers.
Dolomite Powder for Adhesive Manufacturing: Complete Formulation & Dosage Guide - Dolomite powder for adhesive, dolomite for adhesive manufacturing, dolomite for tile adhesive, dolomite for PU sealant, dolomite for epoxy. Formulation ratios, dosage percentages, and troubleshooting guide for adhesive manufacturers.